Watch-adjusting means.



J. A. MEROZ.

WATCH ADJUSTING MEANS.

APPLICATION FILED SEPT. 4.19I2.

1,1 59,242. Patented Nov. 2, 1915.

2 SHEETS-SHEET 1- INVENTOR I ATTORNEYS J A. MEROZ'.

WATCH ADJUSTING MEANS.

APPLICATION FILED SEPT. 4. [912.

2 SHEETSSHEET 2.

1,159,242, Patented Nov. 2, 1915.

li llllllIIIIIIIIIIIIIIIIIIIIIIIIIHW "lllllll |l| i mag-1:

IIIIIIIIIIlllllllllllllllillllht- KG I m I, G 2 4% N13 WITNESSES l/Vl/E/VTOR B l Jo/ziz fl/Uamz ATTORNEYS BY W COLUMBIA PLANGGRAPH ca., WASHINGTON, n c

JOHN A. MEROZ, 0F WALTHAM, MASSACHUSETTS.

WATCH-ADJUSTING MEANS.

Specification of Letters Patent.

Patented Nov. 2, 1915.

Application filed. September 4, 1912. Serial No. 718,441.

To all whom it may concern:

Be it known that I, JOHN A. Munoz, a citizen of Switzerland, and a resident of WValtham, in the county of Middlesex and State of Massachusetts, have invented a new and Improved latch-Adjusting Means, of which the following is a full, clear, and exact description.

The invention relates to horology, and its object is to provide a new and improved watch-adjusting means, more especially designed for mechanically adjusting watches without removing the balance, and to insure accurate running of the watch whether the latter is carried or held in a vertical or horizontal position.

For the purpose mentioned use is made of a roller ring carrying a roller table provided with a roller, the roller ring being adjustably secured to the balance wheel to permit of turning the said roller ring without removing the balance from the watch. Use is also made of a hair-spring adjusting device consisting of a turnable regulator provided with two graduations and a stud held on a ring mounted to turn, the ring having two pointers indicating on the said graduations to indicate, the displacement of the hair spring and the displacement of the regulator pins while making the adjustment.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is an enlarged plan view of the watch balance provided with adjusting means; Fig. 2 is a sectional side elevation of the same on the line 22 of Fig. 1; Fig. 3 is an enlarged plan view of the roller ring; Fig. 4 is an enlarged sectional side elevation of the balance wheel; Fig. 5 is a similar View of the same with the roller ring shown partly detached; and Fig. 6 is an enlarged plan View of the regulator and the adjusting means therefor.

It, is well known that position adjustment of watch movements deals with the balance, the balance stafi, the hair spring and collateral parts, such as the escapement, roller, fork, etc. Position adjustment aims to overcome the tendency of the watch movement to a change in rate when its position is changed and gravitation and friction are the essential factors considered in position adjusting. With the improvements presently to be described position adjustment is accomplished without requiring removal of the balance or other parts from the watch movement.

The staff A of the balance wheel B is j ournaled in the usual bearings C and 0 carried by the balance cock D and the plate E, as plainly indicated in Fig. 2. The roller F is attached in the usual manner to the roller table F secured centrally to a ring F 2 provided on its peripheral edge with an annular rabbet F engaged by the heads G of screws G screwing in the diametrical arm B of the balance wheel B. The head G of each screw G is provided-with a rabbet G fitting the rabbet F and each screw G is provided at the head G with a cross slot G and a similar slot G is at the terminal of each screw so that the latter can be turned from the top of the balance wheel to permit of loosening or fastening the corresponding screw G. When it is necessary to adjust for a correct beat of the escapement then the screws G are loosened so that the ring F can be turned to move the roller F into proper position relative to the fork of the pallet (not shown), and when the desired position is reached the screws G are screwed up to securely fasten the ring F in position on the cross arm 13 of the balance wheel B. Thus by the arrangement described the roller F can be properly adjusted without removing the balance wheel from the watch movement. The ring F is provided at its rim with apertures F for engagement with a suitable tool in the hands of the operator for turning the ring F whenever the screws G are loosened, as above described. The ring F is also provided with a central dished hub F and an integral cross arm F, and the hub F is secured to the roller table F. A roller table F is secured to the under side of the dished hub F to locate the roller F in the plane of the pallet.

From the foregoing it will be seen that the roller F can be readily adjusted for producing a correct beat without danger of injuring the hair spring or the balance wheel or disturbing the mounting of the balance wheel.

It is noted that the screws G and the rim of the roller ring F 2 are located outside of the hair spring H and hence the lat ter is not liable to be touched when adjusting the roller ring. By making the roller ring detachable from the balance wheel, the watchmaker, jeweler or repairer can readily replace a broken roller pm by a new one at the time the'roller ring is detached from the balance wheel, so that the operator is not liable to bend the ba-lance wheel arm or disturb the balance wheel pins or unduly heat the balance wheel or its staff when setting the roller pin in position with shellac. The balance wheel can be safely placed aside while-replacing a roller pin by a new one on the roller table held on the detached roller ring.

The hair spring H is secured at its inner i end to the collet I attached to the staff A,

. by a cape or retaining ring L fastened in placeon the balance cock" D by screws L so that the ring J 2 is freeto turn without danger of upward or downward displacement. It is understood that on turning the stud ring J the studJ' is shifted to cause the hairspring- H to be adjusted to increase or decreaseits tension. The hairspring H passes between th regulator or curb pins N of the regulator N, which latter is'in the form of a sector having inwardly-extending radial arms terininating in a ring-shaped bearlng l 3 mounted to turn on the peripheral faceof the ring J as plainly indicated in Fig.2,

the ring 1 3 resting on top of the balance cock D. The regulator N is provided on its peripheral face with micrometric teeth 1 4 in mesh with a pinion 0 attached to a stud O- mounted to turn on the balance cock D, so that when the stud O is turneda turning motion is given to the pinion and to the regulator N to shift the regulator-pins N nearer to orfarther from the stud J according to the direction in which the stud O and the pinion O are turned. The regulator N is provided with graduations N and N of which the graduation N and its pointer J 4 serve to indicate displacement of thehair spring, while the graduation N and the pointer J 5 serve to indicate displacement of theregulator pins N. The graduations N and l 6 are arranged in proportion to the teeth N of the regulator N, and the teeth of the pinion'O to provide amicro-V metric adjustment, each degree ofthe graduation N being one one-hundredth part of a millimeter, andeach degree of the graduation N being one-tenth part of a millimeter, that is, ten times more than a degree of the graduation N Presuming that the regulator pins N are in correct-position, and it is necessary to ad just the hair spring H then the stud ring J is turned and in doing so the stud is moved nearerto'or farther from the regulator pins N according to the direction in which the stud ring J is turned.

The turning of the stud ring J 2 causes a shifting of the pointer J relative to the graduations N andvis equivalent tothe displacement of the stud J. In order to correct this defect, the number of degrees through which the pointer J 5 has been shift ed is noted by the operator, and after the hair spring is correctly adjusted theregulator is t-urned backward the same number of degrees, that'is, until the pointer J5 again indicates on the same degree of the graduation N it had at the beginning. It will further be noticed that onadjusting the pins N relative to the stud J the pointer J 5 indicatcs on the graduation N the numberof degrees moved for correction toward fast or slow. The pointer J indicates on the graduation N how many degrees the hair-spring H is displacedin reading.

It will be seen that I arrange the. unit graduations N along the arc of a circle and the fractional graduations: N along another arc of the'same circle, and that thering' J which is movablerelatively to said circle, has a pointer for the unit-graduations and a separate pointer for the fractional graduations, so. that I do not confuse the reading along the unit graduations by the readings along the fractional graduations or vice versa. By this'means I facilitate the accurate-reading of the graduations, which are necessarily very-small in a watch, by avoiding confusion of one set of graduations with the other.

By reference to- Fig. 2, it will be:noticed that the pointers J"=, J are flush with the upper faces of the regulator N and the cape or retaining ring L, and the terminals of the pointers J J are in close proximity to the inner surface of the sector-shapedregulator N. The cape or retaining ringL serves to fasten the stud ring J 2 in'placeand to maintain the regulator N in straight position on the balance cock D, and it alsoholds the top end stone C of the-head bearing 0 in position, as will be readily understood by reference to Fig. 2.

a It is understood that by the arrangement described the roller ring can be turned on i correct position relative to the fork ofthe I pallet.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a watch, a staff, a balance cock, a ring mounted to turn on the cock and provided with an arm and two pointers, a hair spring having one end secured to the staff and its other end to the arm of said ring, a regulator mounted to turn on the said ring and provided with two graduations and with regulator pins, and means for regulator.

2. In a watch, a balance cock having an annular bearing, a rabbeted ring mounted to turn on the said bearing and provided with an arm carrying astud to which a hair spring is adapted to be secured, a retaining ring engaging the rabbet of the ring and secured to the balance cock, and a regulator mounted to turn on the peripheral face of the rabbeted ring below the retaining ring.

3. In combination with a balance cock turning the having a raised annular bearing, a stud, a ring mounted to turn on the said bearing and having an arm carrying the said stud, the said ring having a rabbet at its inner edge and a radial pointer at its outer edge, a retaining ring, screws fastening the said retaining ring to the balance cook, a regulator sector having a graduation on which indicates the said pointer, the terminal of the latter being adjacent to the inner edge of the sector, radial arms on the sector, and a hub on the arms and mounted to turn on the peripheral face of the stud carrying ring below the cape or retaining ring.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN A. MEROZ.

Witnesses:

CHARLES G. Srnvnn, RALPH W. HILL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

